While it might be the Black Swan star’s third child, it’s her first with her music producer boyfriend, Tanguy Destable. Read on to find out…Who is Tanguy Destable? Tanguy Destable – known by his stage name Tepr – is a French electronic music producer, composer, actor, and DJ. When did Tanguy Destable and Natalie Portman start dating? Do Tanguy Destable and Natalie Portman have children?